I am new to unix and have a basic understanding. I require a script that will look at the disk size of my system every hour, and then notify me if it has reached 90% in any of the areas by email. eg live has reached 90%. If any one could let me know how this is done It would be great.
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Disk size warning script 1
- Thread starter pobrika
- Start date
-
1
- #2
#!/usr/bin/ksh
#
#@(#) Check filesystem space -
#@(#) used to automate the monitoring of filesystems to
#@(#) confirm that they do not pass a pre-defined threshold.
#
# This job is set up in cron to run on a regular basis.
# It monitors space in directories, making sure that free space
# does not fall below pre-defined thresholds.
#
export DATE=`date +%m%d`
export TMP="/tmp/.chkfilspc.$DATE"
export PATH=/usr/bin:/usr/sbin:/bin:/sbin:/usr/ucb:/usr/local/bin:
export HOSTNAME=`hostname`
export PROGRAM=$0
export PAGE='/usr/local/bin/sendpage -n'
# If you are using this under AIX 3.2.5, leave DF='df', but on
# an AIX 4 system you will have to change it to DF='df -k'
export DF='df -k'
function CHK_FILE_SPC
{
export FILESYS=$1
if [ "$3" = "%" ]
then
export AMOUNT=`$DF $FILESYS | tail -1 | awk -v PERCENT=$2 '{print $2*PERCENT/100/1024}'`
else
export AMOUNT=$2
fi
integer FREE_SPACE LOW_WATER_MARK
FREE_SPACE=`$DF $FILESYS | tail -1 | awk '{print $3}'`
(( LOW_WATER_MARK = $AMOUNT * 1024 ))
if (( $FREE_SPACE < $LOW_WATER_MARK))
then
(( MB_FREE = $FREE_SPACE / 1024 ))
FILE_NAME="$TMP`echo $FILESYS | sed 's/\//\./g'`"
if [ ! -s $FILE_NAME ]
then
# If the log file doesn't exist, then check the filesystem one more
# time before paging the administrator
RE_CHK_FILE_SPC
else
# If the log file exists, then just log that it was still full at this
# time, but don't do any more (unless /tmp is the file that's full and
# the log could not be created.
date >> $FILE_NAME
fi
fi
}
function RE_CHK_FILE_SPC
{
integer FREE_SPACE LOW_WATER_MARK
FREE_SPACE=`$DF $FILESYS | tail -1 | awk '{print $3}'`
(( LOW_WATER_MARK = $AMOUNT * 1024 ))
if (( $FREE_SPACE < $LOW_WATER_MARK))
then
(( MB_FREE = $FREE_SPACE / 1024 ))
FILE_NAME="$TMP`echo $FILESYS | sed 's/\//\./g'`"
MESSAGE="Only $MB_FREE MB free in filesystem - $FILESYS - on $HOSTNAME"
# Comment out the next line if you do not have any paging software
# installed.
echo "$MESSAGE" | $PAGE UNIX_CRITICAL
# The following lines open the log file and save the message. This
# file is used to check against each time the script is run. If
# the log file exists then it will not page again, until after the
# date changes
date > $FILE_NAME
echo "$MESSAGE" >> $FILE_NAME
# The following lines will be sent to the mailbox of the root user.
echo "PROGRAM: \t $PROGRAM\n"
echo "LOG FILE:\t $HOSTNAME:$FILE_NAME\n"
echo "MESSAGE: \t $MESSAGE\n"
echo "PAGED: \t UNIX_CRITICAL"
fi
}
############### MAIN
#
# The format of the following lines - are as follows:
# FUNCTION_NAME filesystem amount_free [%]
#
# Examples:
#
# CHK_FILE_SPC /tmp 10
# - check /tmp for 10 MB of free space
#
# CHK_FILE_SPC / 40 %
# - check / to see that there is 40 % of free space
CHK_FILE_SPC /tmp 10
CHK_FILE_SPC /home 50
Mike --
| Mike Nixon
| Unix Admin
| ----------------------------
#
#@(#) Check filesystem space -
#@(#) used to automate the monitoring of filesystems to
#@(#) confirm that they do not pass a pre-defined threshold.
#
# This job is set up in cron to run on a regular basis.
# It monitors space in directories, making sure that free space
# does not fall below pre-defined thresholds.
#
export DATE=`date +%m%d`
export TMP="/tmp/.chkfilspc.$DATE"
export PATH=/usr/bin:/usr/sbin:/bin:/sbin:/usr/ucb:/usr/local/bin:
export HOSTNAME=`hostname`
export PROGRAM=$0
export PAGE='/usr/local/bin/sendpage -n'
# If you are using this under AIX 3.2.5, leave DF='df', but on
# an AIX 4 system you will have to change it to DF='df -k'
export DF='df -k'
function CHK_FILE_SPC
{
export FILESYS=$1
if [ "$3" = "%" ]
then
export AMOUNT=`$DF $FILESYS | tail -1 | awk -v PERCENT=$2 '{print $2*PERCENT/100/1024}'`
else
export AMOUNT=$2
fi
integer FREE_SPACE LOW_WATER_MARK
FREE_SPACE=`$DF $FILESYS | tail -1 | awk '{print $3}'`
(( LOW_WATER_MARK = $AMOUNT * 1024 ))
if (( $FREE_SPACE < $LOW_WATER_MARK))
then
(( MB_FREE = $FREE_SPACE / 1024 ))
FILE_NAME="$TMP`echo $FILESYS | sed 's/\//\./g'`"
if [ ! -s $FILE_NAME ]
then
# If the log file doesn't exist, then check the filesystem one more
# time before paging the administrator
RE_CHK_FILE_SPC
else
# If the log file exists, then just log that it was still full at this
# time, but don't do any more (unless /tmp is the file that's full and
# the log could not be created.
date >> $FILE_NAME
fi
fi
}
function RE_CHK_FILE_SPC
{
integer FREE_SPACE LOW_WATER_MARK
FREE_SPACE=`$DF $FILESYS | tail -1 | awk '{print $3}'`
(( LOW_WATER_MARK = $AMOUNT * 1024 ))
if (( $FREE_SPACE < $LOW_WATER_MARK))
then
(( MB_FREE = $FREE_SPACE / 1024 ))
FILE_NAME="$TMP`echo $FILESYS | sed 's/\//\./g'`"
MESSAGE="Only $MB_FREE MB free in filesystem - $FILESYS - on $HOSTNAME"
# Comment out the next line if you do not have any paging software
# installed.
echo "$MESSAGE" | $PAGE UNIX_CRITICAL
# The following lines open the log file and save the message. This
# file is used to check against each time the script is run. If
# the log file exists then it will not page again, until after the
# date changes
date > $FILE_NAME
echo "$MESSAGE" >> $FILE_NAME
# The following lines will be sent to the mailbox of the root user.
echo "PROGRAM: \t $PROGRAM\n"
echo "LOG FILE:\t $HOSTNAME:$FILE_NAME\n"
echo "MESSAGE: \t $MESSAGE\n"
echo "PAGED: \t UNIX_CRITICAL"
fi
}
############### MAIN
#
# The format of the following lines - are as follows:
# FUNCTION_NAME filesystem amount_free [%]
#
# Examples:
#
# CHK_FILE_SPC /tmp 10
# - check /tmp for 10 MB of free space
#
# CHK_FILE_SPC / 40 %
# - check / to see that there is 40 % of free space
CHK_FILE_SPC /tmp 10
CHK_FILE_SPC /home 50
Mike --
| Mike Nixon
| Unix Admin
| ----------------------------
This is a script that might work also for you:
df | grep -v Used | awk '{print $7}' | while read FS
do
if [ "${FS}" != "/proc" ]
then
PERCENT_USED=$(df ${FS} | awk '{print $4}' | grep -v Used | cut -f1 -d"%"
if [ "${PERCENT_USED}" -gt 89 ]
then
echo "${FS} on `hostname` is ${PERCENT_USED}% Full!" | mailx user@domain.com
fi
fi
done
Regards,
Chuck
chuck.spilman@nokia.com
df | grep -v Used | awk '{print $7}' | while read FS
do
if [ "${FS}" != "/proc" ]
then
PERCENT_USED=$(df ${FS} | awk '{print $4}' | grep -v Used | cut -f1 -d"%"
if [ "${PERCENT_USED}" -gt 89 ]
then
echo "${FS} on `hostname` is ${PERCENT_USED}% Full!" | mailx user@domain.com
fi
fi
done
Regards,
Chuck
chuck.spilman@nokia.com
Oh... forgot to mention that the reason I am not checking the /proc filesystem is that in AIX5L, there is no size for this filesystem, but it's the only version that has the /proc filesystem. So this script will work with AIX 3.2.5 all the way up to AIX5L.
Regards,
Chuck
chuck.spilman@nokia.com
Regards,
Chuck
chuck.spilman@nokia.com
Thankyou Mike Lacey, you are to kind FAQ done
mike --
| Mike Nixon
| Unix Admin
| ----------------------------
mike --
| Mike Nixon
| Unix Admin
| ----------------------------
Pretty similar to the previous one but here's another!
running on SunOS 2.6
#! /bin/ksh
CAPE=0
AREA=0
SIZE=0
echo
df -k|nawk '{print $6" "$5}'|tr -d '%'|grep -v capacity|while read AREA SIZE
do
SIZE=`expr $SIZE + 0`
if [ $SIZE -ge 90 ]
then
echo "Warning! $AREA is $SIZE"%" full!"
CAPE=1
fi
done
if [ $CAPE -lt 1 ]
then
echo "All filesystems are currently less than 90% capacity!"
fi
exit 0
running on SunOS 2.6
#! /bin/ksh
CAPE=0
AREA=0
SIZE=0
echo
df -k|nawk '{print $6" "$5}'|tr -d '%'|grep -v capacity|while read AREA SIZE
do
SIZE=`expr $SIZE + 0`
if [ $SIZE -ge 90 ]
then
echo "Warning! $AREA is $SIZE"%" full!"
CAPE=1
fi
done
if [ $CAPE -lt 1 ]
then
echo "All filesystems are currently less than 90% capacity!"
fi
exit 0
Heres the one I run on SCO 5.0.5
#!/bin/sh
# Site specific utilities
# Monitoring Disk useage
# written by K.Haughton 17/01/2000
# modified 04/08/2000
set -x
# Cofigurable options START
DISK_FULL=10.00
LOW_SPACE=25.00
NORMAL=100.00
LOGDIR=""
LOGFILE=hddspace.log
MAIL_LIST=kevinh@th1.theth.com
SERVER=`uname -n`
SCODE=`uname -n`
# Set Environment Variables
# Date
D1=`date +%d/%m/%y%n`
# Time
D2=`date +%H:%M:%S`
# Day
D3=`date +%a`
# ***** Main section ******
# Begin, Identify diskspace
/etc/dfspace | grep '^[^T*]' >> $$_FS
# Log space and date
echo "-------------- BEGIN LOGGING ---------------" >> $LOGDIR$LOGFILE
echo "*** $D1 $d2 ***" >> $LOGDIR$LOGFILE
/etc/dfspace | grep '^[^T*]' >> $LOGDIR$LOGFILE
echo "------------- END OF LAST LOG ---------------" >> $LOGDIR$LOGFILE
echo " " >> $LOGDIR$LOGFILE
# End log
# Get drives
DRIVES=`egrep '^' $$_FS | awk '{ print $1 }'`
for DRIVE in $DRIVES
do
# Identify space, used and percentage
USED=`egrep '^'${DRIVE}'[^A-Za-z]' $$_FS | awk '{ print $5 }'`
TOTAL=`egrep '^'${DRIVE}'[^A-Za-z]' $$_FS | awk '{ print $8 }'`
PERCENT=`egrep '^'${DRIVE}'[^A-Za-z]' $$_FS |sed -e 's/(/ /g;s/)\./ /g'| awk '{ print $11 }'`
# Option for reporting very low disk space by E-Mail tests space on /u and /appl
# also add any drive over 95% full
# NB: other partitions will naturally be small and near full by default
if [ $PERCENT -le $DISK_FULL ] || [ $DRIVE = '/u' ] || [ $DRIVE = '/appl' ] && [ $PERCENT -le $LOW_SPACE ] ; then
# add drive to message body
echo "$DRIVE \\ton $SERVER has Low Disk Space, it has only $PERCENT free "\\n >> mailmsg.tmp
fi
done
# tidyup
chmod 777 $LOGDIR$LOGFILE
chmod 777 $$_FS
#rm $$_FS
# message mailer
if test -s mailmsg.tmp ; then
cat $$_FS >> mailmsg.tmp
echo "LOGDIR=$LOGDIR LOGFILE=hddspace.log" >> mailmsg.tmp
# send message
mail -s"Low Disk Space alert!!! $DEPOT" $MAIL_LIST < mailmsg.tmp
rm mailmsg.tmp
fi ***************************************
Party on, dudes!
![[cannon]](/data/assets/smilies/cannon.gif "[cannon] [cannon]")
#!/bin/sh
# Site specific utilities
# Monitoring Disk useage
# written by K.Haughton 17/01/2000
# modified 04/08/2000
set -x
# Cofigurable options START
DISK_FULL=10.00
LOW_SPACE=25.00
NORMAL=100.00
LOGDIR=""
LOGFILE=hddspace.log
MAIL_LIST=kevinh@th1.theth.com
SERVER=`uname -n`
SCODE=`uname -n`
# Set Environment Variables
# Date
D1=`date +%d/%m/%y%n`
# Time
D2=`date +%H:%M:%S`
# Day
D3=`date +%a`
# ***** Main section ******
# Begin, Identify diskspace
/etc/dfspace | grep '^[^T*]' >> $$_FS
# Log space and date
echo "-------------- BEGIN LOGGING ---------------" >> $LOGDIR$LOGFILE
echo "*** $D1 $d2 ***" >> $LOGDIR$LOGFILE
/etc/dfspace | grep '^[^T*]' >> $LOGDIR$LOGFILE
echo "------------- END OF LAST LOG ---------------" >> $LOGDIR$LOGFILE
echo " " >> $LOGDIR$LOGFILE
# End log
# Get drives
DRIVES=`egrep '^' $$_FS | awk '{ print $1 }'`
for DRIVE in $DRIVES
do
# Identify space, used and percentage
USED=`egrep '^'${DRIVE}'[^A-Za-z]' $$_FS | awk '{ print $5 }'`
TOTAL=`egrep '^'${DRIVE}'[^A-Za-z]' $$_FS | awk '{ print $8 }'`
PERCENT=`egrep '^'${DRIVE}'[^A-Za-z]' $$_FS |sed -e 's/(/ /g;s/)\./ /g'| awk '{ print $11 }'`
# Option for reporting very low disk space by E-Mail tests space on /u and /appl
# also add any drive over 95% full
# NB: other partitions will naturally be small and near full by default
if [ $PERCENT -le $DISK_FULL ] || [ $DRIVE = '/u' ] || [ $DRIVE = '/appl' ] && [ $PERCENT -le $LOW_SPACE ] ; then
# add drive to message body
echo "$DRIVE \\ton $SERVER has Low Disk Space, it has only $PERCENT free "\\n >> mailmsg.tmp
fi
done
# tidyup
chmod 777 $LOGDIR$LOGFILE
chmod 777 $$_FS
#rm $$_FS
# message mailer
if test -s mailmsg.tmp ; then
cat $$_FS >> mailmsg.tmp
echo "LOGDIR=$LOGDIR LOGFILE=hddspace.log" >> mailmsg.tmp
# send message
mail -s"Low Disk Space alert!!! $DEPOT" $MAIL_LIST < mailmsg.tmp
rm mailmsg.tmp
fi ***************************************
Party on, dudes!
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